Stapler



FIG. 1 is a perspective view of front, top and left side view of a stapler showing my new design;

FIG. 2 is a perspective view of rear, top and right side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a perspective view showing a state that a staple-housing portion is open.

The broken line showing of a stapler is for the purpose of illustrating portion of the stapler and forms no part of the claimed design. 

CLAIM The ornamental design for a stapler, as shown and described. 